Interspecies Somatic Cell Nuclear Transfer and Mitochondrial DNA Compatibility
Author Information
Author(s): Jiang Yan, Kelly Richard, Peters Amy, Fulka Helena, Dickinson Adam, Mitchell Daniel A., St. John Justin C.
Primary Institution: Mitochondrial and Reproductive Genetics Group, Clinical Sciences Research Institute, Warwick Medical School, Coventry, United Kingdom
Hypothesis
The success of interspecies somatic cell nuclear transfer (iSCNT) is dependent on the compatibility of mitochondrial DNA and reprogramming factors.
Conclusion
The addition of species-compatible mitochondrial DNA and reprogramming factors significantly improves the developmental outcomes of iSCNT embryos.
Supporting Evidence
- Blastocyst rates increased significantly from 0.48% to 3.38% with the addition of murine embryonic stem cell extract.
- Murine mtDNA levels were maintained throughout early preimplantation development in supplemented embryos.
- Embryos supplemented with murine ESC extract showed better cell organization compared to those with somatic cell extract.
Takeaway
Scientists are trying to create embryos by mixing cells from different species, and they found that using the right kind of mitochondria helps the embryos grow better.
Methodology
Murine fetal fibroblasts were transferred into enucleated porcine oocytes, and the effects of mitochondrial DNA compatibility were assessed.
Potential Biases
Potential bias in the selection of oocyte and donor cell types could affect the generalizability of the findings.
Limitations
The study primarily focused on a murine-porcine model, which may not fully represent other species combinations.
Participant Demographics
The study involved murine and porcine cells, but specific demographic details were not provided.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website